Cell Line, Reactive Oxygen Species - metabolism, Cadmium - toxicity, Apoptosis - drug effects, Acetylmuramyl-Alanyl-Isoglutamine - analogs & derivatives, Environmental Monitoring - methods, Fibroblasts - pathology, Squalene - analogs & derivatives, Polysorbates, Mercury - toxicity, Animals, Water Pollutants, Chemical - toxicity, Metals, Heavy - toxicity, Fib...